Hedge-trimming machine



WITNESS Sept. 8, I925. 1,552,858

- J. LIPOVAC HEDGE TRIMMING MACHINE} Filed Nov. 29', 1921 2 Shoots-Shani; 1

INVENTOR wuw A TTORNE Y8 Sept. 8, 1925. 1,552,858

J. LIPOVAC HEDGE TRIMMING MACHINE Filed Nov. 29. 1921 2 Sheets-Shoot 2 JL/Pdvno,

A TTOR/VEYS Patented Sept. 8,. 1925.

JCSEPH LIPOVAC, F GREENWOOD, MISSISSIPPI;

HEDGE-TRIMMING MACHINE.

' Application filed November 29,1921. Serial m. 518,580.

To all whomc't may concern.

Be it known=that I, Josnrrr Lrrovnc, a citizen of the United States,-and a resident of Greenwood', i nthe county of Leflore and 5 State of Mississippi,=have= made certain new and useful Improvements in -Hedge-Trimming Machines, of'which e following a specification. ,1

This invention 'i'el'ates o avhedge trimming machine. 2

The object of the {was is to provide a machine of the above character which is portable and adapted to-o rate for cutting or trimming a certain width over which it may be moved. v

' It is also an object of the invention that the device may be held for operating at any desired angle.

Other objects and advantages relating to details of construction, combination and arrangement of parts will hereinafter more definitely appear in the detailed description to follow.

The invention is illustrated by way of example in the accompanying drawing, in which:

Figure 1 is a top plan view of the device as assembled and with the cutter bar and guards removed therefrom;

Figures 2 and 3 are detailed perspective views of the cutter bar and knife bar, respectively;

Figure 4 is a vertical transverse section taken at a central point longitudinally of the device when assembled;

Figure 5 is a detailed perspective of a combined bearing and support;

Figure 6 is an end view of the actuator;

Figure 7 is a detailed perspective of the knife bar carrier.

On referring to the drawings more particularly, A indicates generally a combined bearing and support, B a guard bar, C a knife bar, D a reciprocating member or shuttle and E an actuator.

More particularly, the member A consists of a bearing portion 10 which is adapted to journal the cylindrical member 11 of the actuator E. The cylindrical member 11 has formed on its outer face a stem 12, which is journaled in a sleeve 13, said sleeve being secured on its inner end to the bearing portion 10 of the member A, by the means of screws as indicated at 14. On the outer end of the stem 12 there is fitted a crank 15 by which the cylindrical member 11 may be manually rotated. 1

Forwardly of the bearing portion 10 of the member A there is formed a pair of plate supports 16, one extending from the opposite ends of the member and the top surfaces being arranged in the same plane and in alinement with each other. Between these plate supports the member is recessed as at 17 for receiving the'recip-rocating member D. The member D comprises a plate portion 18, which is provided at its opposite ends with forwardly projecting legs 18 and said legs being each formed with a stud 19. The member D also has formed preferably integral therewith a downwardly extending U-shaped member 20. The member D as a whole is freeto move within the recess 17 in a direction perpendicular to the longitudinal axis of the cylindrical member 11. The ledges 21 are formed within the recess 17 and support the member D and permit a sliding movement of itsplate portion 18 thereover. The plate portion 18 has its corners back of the legs 18 cut away at 22 so that these corners may not interfere with the raised inner edged portions 23 of the plate support 16.

Upon the forward face of the cylindrical member 11 there is carried a roller 24, which is adapted to alternately engage with the inner side surfaces of the U-shaped portion 20 of the member D during the rotation of the cylindrical member 11, and cause the member D-to be reciprocated, said roller 24 being eccentrically positioned on the front face of member 11.

The bearing portion 10 of the memberll is also formed upon its top surface with a central raised portion 25, and upon each raised edge 23 ofplate support 16 there is formed a stud 26 and centrally of the forward wall formed by the recess 17, there is formed a hollow threaded post 27.

The knife bar 0 is of the usual construc- 100 tion and comprises the elongated plate 28 which is formed with a series of cutting knives 29 and a guide tongue 30. Theknife bar is adapted to slide upon the top surfaces of the plate support 16, the studs 19 105 of the member D extendin through openings 30 formed in the kni e bar, while the post 27 extends through an elongated slot 31, likewise provided in the knife bar. As is obvious from the construction cited, the 110 The guard bar B is placed upon the knife bar so that the guards 32 carried by the guard bar may extend to protect the knife 29 in the usual manner as shown 1n Figure 4. The guide tongue 30 of the knife bar will be disposed-in a groove 33 formed in the lower face of the guard bar. The inner edge of the guard bar is provided with a recess or cutout 34 which is adapted to accommodate the raised portion 25 of the member A and thus to hold the guard bar against longitudinal movement. Also the studs 26 formed upon the member A extend throu 'h suitable openings as at 35, provided 1n t e guard bar B and thus further hold the said bar in position.

A screw 36 is extended through a suitable opening in the guard bar shown in Figure 2 and the lower end of "the said screw is threaded into the post 27, thereby securing the guard bar in place against the member A, but at the same time permitting the knife bar C to be free for reciprocating motion.

It is believed from the foregoing description that the o eration of my invention can be clearly un erstood. This operation is obvious and therefore no detailed description thereof is necessary. It may be here mentioned, however, that instead of using the crank for rotating the cylindrical membe understood that I am aware of the fact that minor changes may be made in the combination and arrangement of parts by those skilled in the art without "departing from the spirit of the invention as indicated by the appended claim.

I claim:

A device of the character described comprising an elongated casting havinga journal box portion intermediate its ends and an elongated vertical recess at the front thereof, fiat ledges within the 0p osite ends of said recess, a rotatable mem er journaled within said box portion, a roller carried eccentrically by said rotatable member, a shuttle member adapted to be ositioned in said recess and supported an uided on said ledges, a knife-bar mounte on said shuttle member, pins carried by said shuttle member ada ted to detachably engage in openings in sai knife bar, and a U-shaped extension projecting from said shuttle member within which extension the eccentrical- 1y mounted roller of the rotatable member operates to reciprocate the knife bar u on rotation of the aforesaid rotatable mem er.

JOSEPH LIPOVAG. 

